@nicksellen That's weird. I can't find the word "affirmation" anywhere in that page you linked to. They do talk about "inner voices", and what you described as an "affirmation" is what they describe as an example of a possible inner voice.
There seems to be a really big different between the classic "positive affirmation" idea and talking about "inner voices".
I guess you're right -- the way you are projecting your preconceptions does not align at all with what I'm seeing.